ddd: ddd (graphical front-end for command-line debuggers)
ddd: 
ddd: GNU DDD is a graphical front-end for command-line debuggers such as
ddd: GDB, DBX, WDB, Ladebug, JDB, XDB, the Perl debugger, the bash
ddd: debugger, or the Python debugger. Besides ``usual'' front-end features
ddd: such as viewing source texts, DDD has become famous through its
ddd: interactive graphical data display, where data structures are
ddd: displayed as graphs.
ddd: 
ddd: 
ddd: 
